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Simplify the rational expression.

(2x^(2)-5x-12)/(x^(2)-7x+12)

Simplify the rational expression.\newline2x25x12x27x+12 \frac{2 x^{2}-5 x-12}{x^{2}-7 x+12}

Full solution

Q. Simplify the rational expression.\newline2x25x12x27x+12 \frac{2 x^{2}-5 x-12}{x^{2}-7 x+12}
  1. Factor Numerator and Denominator: Factor the numerator and the denominator.\newlineThe numerator 2x25x122x^2 - 5x - 12 and the denominator x27x+12x^2 - 7x + 12 can be factored into products of binomials.\newlineFor the numerator, we look for two numbers that multiply to 2(12)=242*(-12) = -24 and add up to 5-5. These numbers are 8-8 and 33.\newlineFor the denominator, we look for two numbers that multiply to 112=121*12 = 12 and add up to 7-7. These numbers are 3-3 and 4-4.
  2. Factor Using Found Numbers: Factor the numerator and the denominator using the numbers found in Step 11.\newlineThe numerator factors to (2x8)(x+3)(2x - 8)(x + 3).\newlineThe denominator factors to (x3)(x4)(x - 3)(x - 4).
  3. Re-evaluate Factoring: Simplify the rational expression by canceling out common factors.\newlineWe notice that (x+3)(x + 3) is not a common factor, but there seems to be a mistake in the factoring process as there is no common factor to cancel out. We need to re-evaluate the factoring of the numerator.

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